<!DOCTYPE html>
<html>
<head> 
<meta charset="utf-8"> 
<title>菜鸟教程(runoob.com)</title> 
</head>
<body>

<h4>嵌套列表：</h4>
<ul style="list-style-type:disc">
  <li>Coffee</li>
  <li>Tea
    <ul style="list-style: square;">
      <li>Black tea</li>
      <li>Green tea</li>
    </ul>
  </li>
  <li>Milk</li>
</ul>

</body>
</html>